diff --git a/js/reveal.js b/js/reveal.js
index 8fae129..603e3bd 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -2825,6 +2825,16 @@ var Reveal = (function(){
 	// --------------------------------------------------------------------//
 
 
+	/**
+	 * Constructor for the playback component, which displays
+	 * play/pause/progress controls.
+	 *
+	 * @param {HTMLElement} container The component will append
+	 * itself to this
+	 * @param {Function} progressCheck A method which will be
+	 * called frequently to get the current progress on a range
+	 * of 0-1
+	 */
 	function Playback( container, progressCheck ) {
 
 		this.size = 50;
@@ -2883,6 +2893,8 @@ var Reveal = (function(){
 			x = this.size / 2,
 			y = this.size / 2;
 
+		var iconSize = 14;
+
 		var startAngle = - Math.PI / 2;
 		var endAngle = startAngle + ( progress * ( Math.PI * 2 ) );
 
@@ -2902,15 +2914,13 @@ var Reveal = (function(){
 		this.context.strokeStyle = '#666';
 		this.context.stroke();
 
-		// Draw progress along arc edge
+		// Draw progress on top of track
 		this.context.beginPath();
 		this.context.arc( x, y, radius, startAngle, endAngle, false );
 		this.context.lineWidth = this.thickness;
 		this.context.strokeStyle = '#fff';
 		this.context.stroke();
 
-		var iconSize = 14;
-
 		this.context.translate( x - ( iconSize / 2 ), y - ( iconSize / 2 ) );
 
 		// Draw play/pause icons
diff --git a/js/reveal.min.js b/js/reveal.min.js
index e29937f..a3af3a0 100644
--- a/js/reveal.min.js
+++ b/js/reveal.min.js
@@ -1,8 +1,8 @@
 /*!
- * reveal.js 2.6.0-dev (2013-10-13, 15:24)
+ * reveal.js 2.6.0-dev (2013-10-13, 15:37)
  * http://lab.hakim.se/reveal-js
  * MIT licensed
  *
  * Copyright (C) 2013 Hakim El Hattab, http://hakim.se
  */
-var Reveal=function(){"use strict";function a(a){return b(),$b.transforms2d||$b.transforms3d?(window.addEventListener("load",C,!1),l(Vb,a),l(Vb,Reveal.getQueryHash()),s(),c(),void 0):(document.body.setAttribute("class","no-transforms"),void 0)}function b(){$b.transforms3d="WebkitPerspective"in document.body.style||"MozPerspective"in document.body.style||"msPerspective"in document.body.style||"OPerspective"in document.body.style||"perspective"in document.body.style,$b.transforms2d="WebkitTransform"in document.body.style||"MozTransform"in document.body.style||"msTransform"in document.body.style||"OTransform"in document.body.style||"transform"in document.body.style,$b.requestAnimationFrameMethod=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame,$b.requestAnimationFrame="function"==typeof $b.requestAnimationFrameMethod,$b.canvas=!!document.createElement("canvas").getContext,Pb=navigator.userAgent.match(/(iphone|ipod|android)/gi)}function 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